Steina (Wutach)
Geography and History
The Steina few hundred meters from the confluence with the Wutach
Template: Infobox River / Obsolete
The Steina is a river which rises in the hills of the southern Black Forest, in the sparsely populated area between Lenzkirch and Schluchseewerk north of Rothaus, community Grafenhausen and empties into the Wutach between Lauchringen and Waldshut -Tiengen from the right and east.
Geography and topography
The Steina rises in the high forests of the southern Black Forest, about 2.5 km northeast of the town Schluchseewerk at an altitude of about 1060 m above sea level. NN. After about 2 km, the river bed is located in a valley of considerable depth close to 100 m. The more tortuous course remains in a deep valley cut with initially moderately steep wooded slopes and floodplains individual almost to the mouth. In the lower reaches of the river between Untermettingen and Detzeln the valley crosses the foothills of the basement of the southern Black Forest, which is located in a narrowing valley with steep rock walls. Heinrich Hans Jacob describes it in one of his books as one of the most beautiful valleys of the Black Forest.
Seepage
At the junction of Steina in the Valley of the Wutach, about 1 km upstream of the mouth, the river bed runs in meanders through a small canyon on a porous and eroded limestone formation in which some of the water seeps. At low tide, a section of the river can fall completely dry. The river bed consists of the main shell. The geologist Rudolf Metz described therein lies a 5 cm thick quartz- rich bank with pyrite crystals. The Lost at the percolation point Äule Steinawasser in strong karst springs occurs in the hanging wall on the right bank of the Wutach at the fish farm (now nursery ) from. Although the riverbed no sinkhole can be discerned, but the water disappears to the observer visible in the rock slabs. The after 1.6 km long underground run again outcropping Steinawasser forms the Siechenbach, which opens into the Wutach after a short run to the southwest. Also the Ibrunnen below Lauffenmühle in Honeggerei is a limestone source. During construction of the A98 came in 1991 to more than a hundred meter long limestone cave in which a small piece of pine was discovered with three Placoduszähnen. The cave was closed after a short investigation by experts again.
A portion of the infiltrated water, which does not flow back into the river, is probably part of a large groundwater flow in Klettgau. Add the following to the limestone gravel deposits Unterklettgau - Rhine Valley, the Rhine course in the Mindel - Riss interglacial period, the leachate of Steina meets on groundwater Wutachschlucht and probably flows into the glacial gravel deposits between the citizens forest (400 m above sea level. NN ) and pass in order to reach at Ettikon, community Kuessaberg, today's Rhine Valley Vitibuck.
Traffic and transport
Through the valley of Steina leads the highway 159 from the B 34 in Waldshut- Tiengen to Steinasäge, community Bonn village in the Black Forest, where they from, of Bonn village coming the valley crossing, L 170 is added. The remaining approximately 9 km of the valley of the river is accompanied almost throughout the length of a common road. A single track road leads to Sommerau. In the former Illmühle a cross connection of Uhlingen birch village after Bettmaringen in the rye Bachern castles there is a connection after Wittlekofen. The Steina flows at Untermettingen below the castle Untermettingen over after Detzeln. The Steinatal is a popular tourist destination. It romp around cyclists, motorists and motorcyclists in particular enjoy the winding route. The Upper Rhine Railway crosses with a sandstone viaduct Steinaschlucht between Tiengen and Lauchringen.
Castles in Steinatal
The Valley of Steina was of strategic interest for the construction of castles in the Middle Ages because of its location at the junction of the Black Forest to Unterklettgau. The following ruins lie in the valley of the Steina:
- Castle Krenkingen ( about 1 km east of the district Krenkingen, Waldshut -Tiengen ) Location: 47 ° 40 ' 58 " N, 8 ° 19' 18" O47.6827777777788.3216666666667
- Castle Roggenbach ( about 1.7 km south-west of the district Wittlekofen, Bonn village) Location: 47 ° 46 ' 9 " N, 8 ° 20' 18" O47.7691666666678.3383333333333
- Castle Steinegg (about 1.5 km south-west of the district Wittlekofen, Bonn village) Location: 47 ° 46 ' 20 " N, 8 ° 20 ' 10" O47.7722222222228.3361111111111
Mills and sawmills along the Steina
The water power of the Steina been and is used by several cereals and saw mills, the Steinasäge, wave saw things, Illmühle and sub Mettinger saw.